System for storing liquid or gas in a rock chamber
CA 1296907 C · Owner: Hahn, Torbjorn · Inventors: Hahn, Torbjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for storing liquid or gas in a storage space in rock in which the pressure from the gas or liquid via, a force-transmitting system consisting of concrete and a defined drainage layer, is absorbed by the surrounding rock as at the same time the force-transmitting drainage layer removes water pressure from the surrounding rock volumes.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.